diff --git a/changelog.txt b/changelog.txt
index 02d52644..e6dace1c 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -19,6 +19,7 @@ Date: ????
     - Fixed an issue with simik den localization. Fixes https://github.com/pyanodon/pybugreports/issues/1217
     - Added keyboard shortcuts for quickly opening the T.U.R.D. codex page and the Caravan manager.
     - Enhanced caravan number input to handle MathExp and large numbers better.
+    - Buff starch stage 3 by 4x and allow productivity
     - Hide some unused urea and lard recipes from factoriopedia
 ---------------------------------------------------------------------------------------------------
 Version: 3.0.59
diff --git a/prototypes/updates/pyhightech-updates.lua b/prototypes/updates/pyhightech-updates.lua
index 78be89ed..752fbfd0 100644
--- a/prototypes/updates/pyhightech-updates.lua
+++ b/prototypes/updates/pyhightech-updates.lua
@@ -1570,6 +1570,7 @@ RECIPE {
     category = "biofactory",
     enabled = false,
     energy_required = 5,
+    allow_productivity = true,
     ingredients = {
         {type = "fluid", name = "formic-acid",    amount = 100},
         {type = "item",  name = "enzyme-pks",     amount = 1},
@@ -1577,7 +1578,7 @@ RECIPE {
         {type = "item",  name = "fiberboard",     amount = 2},
     },
     results = {
-        {type = "item", name = "starch", amount = 20}
+        {type = "item", name = "starch", amount = 80}
     }
 }:add_unlock("starch-mk03")